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CONTENTS
S.NO
01
NAME OF THE EXPERIMENT
STUDY OF THEODOLITE
02
MEASUREMENT OF HORIZONTAL ANGLES BY
REITERATION METHOD
03
MEASUREMENT OF HORIZONTAL ANGLES
BYREPETITION METHOD
04
THEODOLIT E SURVEY – TRAVERSING
05
THEODOLIT E SURVEY – HEIGHT AND DISTANCE
(BUILDING)
06
DETERMINATION OF TACHEOMETRIC CONSTANTS
07
08
STADIA TACHEOMETRY- DETERMINATION OF THE
GRADIENT OF THE LINE
SETTING OUT SIMPLE CIRCULAR CURVE - RANKINE'S
METHOD OF
TANGENTIAL DEFLECTION ANGLES
09
SETTING OUT OF TRANSITION CURVE31
10
SETTING OUT A BUILDING
11
AZIMUTH BY THE EX-MERIDIAN OBSERVATION ON THE
SUN
12
FIELD WORK USING TOTAL STATION

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STUDY OF THEODOLITE
EXP:01
DATE:
TRANSIT THEODOLITE:It consists of a telescope which can be revolved through a complete revolution about its horizontal
axis in a vertical plane.
PARTS:Leveling head, telescope, vertical circle, index frame, A frame lower plate, upper plate, level tubes,
plumb bob
LEVELING HEAD:The leveling head consists of two parallel triangular planes known as tribrach plates. The upper
tribrach has three arms, each carrying a leveling screw. The lower tribrach has three arms each carrying a
leveling screw. The lower tribrach plate or foot plate has a circular hole through which plumb bob may be
suspended.
TELESCOPE:The telescope is an integral part of the theodline and is mounted on a spindle known as horizontal
axis or trunnion axis. In most of the transits, internal focusing telescope is used.
VERTICAL CIRCLE:The vertical axis is a circular graduated arc attached to the trunnion axis of the telescope
consequently the graduated arc rather with the telescope when the latter is turned about the horizontal axis.
INDEX FRAME:- The index frame is a T-shaped frame consisting of a vertical leg known as clipping
arm and a horizontal bar known as vernier arm of index corm. At the two extremities of the index arm are
fitted two verniers to read the vertical circle.

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STUDY OF THEODOLITE
A FRAME:Two standards resembling the letter A are mounred on the upper plates. The trunnion axis of the
telescope is supported on these.
LOWER PLATE:The lower plate is attached to the outer spindle. The lower plate carries a horizontal circle at its
leveled edge and is therefore also known as the scale plate.
UPPER PLATE:- The upper plate or vernier plate is attached to the inner axis and carries two verniers
with magnifiers at two extremities diametrically opposite. The upper plate supports the standards.